I believe the answer is:
- These men had more social problems compared to those who never had ADHD
(since they can't pay full attention during social interraction)
- These men had less education and vocational success compared to those who never had ADHD
(People without ADHD tend to be able to focus their time to master one expertise that lead to education and vocational success)
- These men had more substance use problems compared to those who never had ADHD
(most of ADHD patients rely on substance to manage their condition)